It struck me at that point that I'm considered a "girlfriend", and I was somewhat weirded out by them asking my permission on such a thing.
Of course I went and was amused by the event; there was a separate room for it that you could look into. When he came out I asked him how it went and he said "I ... couldn't get aroused in this sort of place." Although he had no problem when I did my own fully-clothed lap dance at his place after the party.
Anywho - what's the deal between you and your sig other when it comes to this sort of thing? My relationship is still new enough in which I didn't feel I really had a say in what his friends did for him for his birthday, and while there I couldn't summon up any jealousy on the matter (although I was jealous of some of their figures). Would you be jealous if he went to a strip club or would you go along to "keep an eye on things" or would you not have a problem either way?